To solve for \( x \) in the equation
\[ \frac{5}{24} = \frac{144}{x} \]
you can cross-multiply:
\[ 5x = 24 \cdot 144 \]
Now, calculate \( 24 \cdot 144 \):
\[ 24 \cdot 144 = 3456 \]
So the equation becomes:
\[ 5x = 3456 \]
Next, divide both sides by 5 to isolate \( x \):
\[ x = \frac{3456}{5} \]
Now calculate \( \frac{3456}{5} \):
\[ x = 691.2 \]
Thus, the final answer is:
\[ x = 691.2 \]